Tom Cruise Bonds with Suri in Quiet Rendezvous Outside London

Tom Cruise spent four to five days of quality time with daughter Suri last week, as he flew her over in his private jet from New York to London and then brought her up to the swanky Grove Hotel in Hertfordshire.

A source told PEOPLE that Suri was with her father for several days, "but they kept such a low profile that nobody really knew she was there."

Suri, 6, is now based with her mother full time in New York City, where she is enrolled in Manhattan's private Avenues school. She cannot visit her father on set these days as easily as she could when she was home-schooled.

Meanwhile, Holmes, 34, was spotted courtside at the New York Knicks game at Madison Square Garden on Wednesday, just seats away from New York Giants star Victor Cruz.